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Hoppmann, Mario; Tippenhauer, Sandra; Fer, Ilker; Hofmann, Zerlina; Mathieu, Laura; McPherson, Rebecca; Reifenberg, Simon F; von Appen, Wilken-Jon; Kanzow, Torsten: Physical oceanography based on ship CTD during RV POLARSTERN cruise PS131 to the Arctic Ocean, July – August 2022 [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.966267 (dataset in review)

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Abstract:
During RV Polarstern expedition PS131 to the Arctic Ocean, a number of hydrographic profiles were obtained using a ship-based Seabird SBE911plus CTD rosette system. The expedition, also referred to as "ATWAICE": ATlantic WAter pathways to the ICE, took place between 28 June and 17 August 2022 and investigated sea ice and ocean properties in the Arctic Ocean, with a focus on sea ice melt processes. The main work areas included Fram Strait, the marginal ice zone northwest of Svalbard, and the East Greenland coast close to the 79°N glacier. A few stations were also done at the Aurora vent field and in Scoresby Sound, Greenland. This dataset comprises the processed data of all 64 CTD stations performed during this expedition, bin-averaged to 1dbar values. The AWI standard software ManageCTD was used for pre-processing, also incorporating selected standard SeaBird processing routines. Station metadata was aligned to the ship's action log. Outliers were identified and interpolated. The list of parameters includes measurement pressure/depth, seawater temperature, conductivity, salinity, dissolved oxygen, optical beam transmission, Chl-a and CDOM fluorescence, photosynthetically active radiation (PAR), along with selected derived variables. Temperature, conductivity/salinity and oxygen were chosen from two independent sensors sets. Temperature offset was corrected using post-cruise calibration results. Salinity was calibrated against in-situ samples measured by an Optimare Precision Salinometer. Dissolved oxygen was calibrated against in-situ samples analyzed by means of Winkler titration. Temporal and pressure drift of these parameters were identified, and corrected accordingly. The optical measurements were converted according to the manufacturer calibration of the respective instrument, but not calibrated against any other measurements. An overview of the sensor configuration and a detailed description of all individual steps is available in the attached processing report, which also includes all relevant calibration sheets.
Keyword(s):
Bio-optical in-situ data; CTD; CTD casts; CTD data; CTD profiles; CTD/Rosett; CTD/Rosette; Fram Strait; Hausgarten; HAUSGARTEN Long Term Observatory; hydrography; Ice Melt; marginal ice zone; physical oceanography; PS131
Related to:
Hoppmann, Mario; Tippenhauer, Sandra; Fer, Ilker; Hofmann, Zerlina; Mathieu, Laura; McPherson, Rebecca; Reifenberg, Simon F; von Appen, Wilken-Jon; Kanzow, Torsten: Physical oceanography measured on water bottle samples based on ship CTD during RV POLARSTERN cruise PS131 to the Arctic Ocean, July – August 2022. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.966337
Kanzow, Torsten (2023): The Expedition PS131 of the Research Vessel Polarstern to the Fram Strait in 2022. Berichte zur Polar- und Meeresforschung = Reports on Polar and Marine Research, 770, 320 pp, https://doi.org/10.57738/BzPM_0770_2023
Source:
Tippenhauer, Sandra; Hoppmann, Mario; von Appen, Wilken-Jon; Kanzow, Torsten (2023): Raw data of physical oceanography during RV POLARSTERN cruise PS131. PANGAEA, https://doi.org/10.1594/PANGAEA.956136
Further details:
Kanzow, Torsten (2022): Master tracks in different resolutions of POLARSTERN cruise PS131, Bremerhaven - Bremerhaven, 2022-06-28 - 2022-08-17. Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven, PANGAEA, https://doi.org/10.1594/PANGAEA.951000
Project(s):
Funding:
Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven (AWI), grant/award no. AWI_PS131_07: ATWAICE Physical Oceanography + Deep Sea
Coverage:
Median Latitude: 78.373444 * Median Longitude: 2.526681 * South-bound Latitude: 64.514900 * West-bound Longitude: -25.302000 * North-bound Latitude: 82.897100 * East-bound Longitude: 12.029200
Date/Time Start: 2022-07-01T07:56:00 * Date/Time End: 2022-08-11T15:11:00
Minimum DEPTH, water: 0.99 m * Maximum DEPTH, water: 3942.76 m
Event(s):
PS131_1-1 * Latitude: 64.514927 * Longitude: 3.433606 * Date/Time: 2022-07-01T07:56:08 * Elevation: -2191.9 m * Sensor URI: registry.o2a-data.de * Location: Arctic Ocean * Campaign: PS131 (ATWAICE) * Basis: Polarstern * Method/Device: CTD/Rosette (CTD-RO)
PS131_1-3 * Latitude: 64.765500 * Longitude: 3.484300 * Date/Time: 2022-07-01T12:14:00 * Elevation: -1693.0 m * Sensor URI: registry.o2a-data.de * Location: Arctic Ocean * Campaign: PS131 (ATWAICE) * Basis: Polarstern * Method/Device: CTD/Rosette (CTD-RO) * Comment: Test
PS131_1-6 * Latitude: 64.765300 * Longitude: 3.483800 * Date/Time: 2022-07-01T13:41:00 * Elevation: -1693.0 m * Sensor URI: registry.o2a-data.de * Location: Arctic Ocean * Campaign: PS131 (ATWAICE) * Basis: Polarstern * Method/Device: CTD/Rosette (CTD-RO) * Comment: Test
Comment:
Acknowledgments: We are grateful to the PS131 crew and scientists onboard RV Polarstern for their help in obtaining the data during this expedition.
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1Event labelEvent
2DATE/TIMEDate/TimeHoppmann, MarioGeocode
3LATITUDELatitudeHoppmann, MarioGeocode
4LONGITUDELongitudeHoppmann, MarioGeocode
5Sample elevationElevationmHoppmann, Mariouncorrected
6Pressure, waterPressdbarHoppmann, MarioCTD, Sea-Bird SBE 911plus
7DEPTH, waterDepth watermHoppmann, MarioCalculatedGeocode
8Temperature, waterTemp°CHoppmann, MarioCTD, Sea-Bird, SBE 911plus, measured with Temperature sensor, Sea-Bird, SBE3plusin-situ; ITS-90
9ConductivityCondmS/cmHoppmann, MarioCTD, Sea-Bird, SBE 911plus; measured with Conductivity sensor, Sea-Bird, SBE 4
10SalinitySalHoppmann, MarioCalculatedpractical salinity PSS78, calibrated against OPS
11Temperature, water, potentialTpot°CHoppmann, MarioCalculatedref. pres. = 0 dbar
12Density, sigma-theta (0)Sigma-thetakg/m3Hoppmann, MarioCalculated
13OxygenO2µmol/lHoppmann, MarioCTD, Sea-Bird, SBE 911plus; measured with Dissolved oxygen sensor, Sea-Bird, SBE 43calibrated against Winkler; recalculated from ml/l by using (ml/l)*44.66
14Oxygen saturationO2 sat%Hoppmann, MarioCalculated
15Attenuation, optical beam transmissionAttenuation%Hoppmann, MarioCTD, Sea-Bird, SBE 911plus; measured with Transmissometer, WET Labs, C-Staruncalibrated
16Chlorophyll aChl aµg/lHoppmann, MarioCTD, Sea-Bird, SBE 911plus; measured with Fluorometer, WET Labs, ECO FLRTDuncalibrated
17Organic matter, colored dissolvedCDOMppb (QSE)Hoppmann, MarioCTD, Sea-Bird, SBE 911plus; measured with Fluorometer, WET Labs, ECO FLCDuncalibrated
18Radiation, photosynthetically activePARµmol/m2/sHoppmann, MarioCTD, Sea-Bird, SBE 911plus; measured with PAR sensor, Sea-Birduncalibrated
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0) (License comes into effect after moratorium ends)
Status:
Curation Level: Enhanced curation (CurationLevelC) * Processing Level: PANGAEA data processing level 3 (ProcLevel3)
Size:
650983 data points

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